/*
 * $Id: MappedValue.java 3927 2011-02-22 16:34:11Z kleopatra $
 *
 * Copyright 2008 Sun Microsystems, Inc., 4150 Network Circle,
 * Santa Clara, California 95054, U.S.A. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package org.jdesktop.swingx.renderer;

import javax.swing.Icon;

/**
 * Compound implementation of XXValue. Currently, XX stands for String, Icon,
 * Boolean.
 * <p>
 * 
 * Quick hack around #590-swingx: LabelProvider should respect StringValue when
 * formatting (instead of going clever with icons).
 * 
 * Note: this will change!
 * 
 * @see CheckBoxProvider
 */
public class MappedValue implements StringValue, IconValue, BooleanValue {

	private StringValue stringDelegate;
	private IconValue iconDelegate;
	private BooleanValue booleanDelegate;

	public MappedValue(StringValue stringDelegate, IconValue iconDelegate) {
		this(stringDelegate, iconDelegate, null);
	}

	public MappedValue(StringValue stringDelegate, IconValue iconDelegate, BooleanValue booleanDelegate) {
		this.stringDelegate = stringDelegate;
		this.iconDelegate = iconDelegate;
		this.booleanDelegate = booleanDelegate;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * 
	 * This implementation delegates to the contained StringValue if available
	 * or returns an empty String, if not.
	 * 
	 */
	@Override
	public String getString(Object value) {
		if (stringDelegate != null) {
			return stringDelegate.getString(value);
		}
		return "";
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * 
	 * This implementation delegates to the contained IconValue if available or
	 * returns null, if not.
	 * 
	 */
	@Override
	public Icon getIcon(Object value) {
		if (iconDelegate != null) {
			return iconDelegate.getIcon(value);
		}
		return null;
	}

	/**
	 * {@inheritDoc}
	 * <p>
	 * 
	 * This implementation delegates to the contained BooleanValue if available
	 * or returns false, if not.
	 * 
	 */
	@Override
	public boolean getBoolean(Object value) {
		if (booleanDelegate != null) {
			return booleanDelegate.getBoolean(value);
		}
		return false;
	}

}